Wire-stripping device.



S. G. WOOD.

WIRE STRIPPING DEVICE.

APPLICATION FILED DEC. 4. 1915.

Patented Aug. 29, 1916.

2 SHEETS-SHEET I.

.5 mm Illlll WITNESS l/VI/E/VTUB HIS A TTUR/VE) S. G. WOOD.

WIRE STRIPPING DEVICE.

APPLICATION FILED DEC-4.1915.

WITNESS STUART G. WOOD, 01E BROOKLYN, NEW YORK.

WIRE-STRIPJPING DEVICE.

To all whom it may concern:

Be it known that I, STUART G. W001), a citizen of the United States, andresident of the borough of Brooklyn, in the county of' Specification ofLetters Patent. Pattenlhfifl A 29 191 Application filed December a,1915.

Serial No. 65,055.

forms. As shown in Figs. 1 to 3 inclusive, t is embodied in a toolhaving a wire clampmg device, a plurality of stripping devices arrangedfor acting on the strands at dif- Kings and State of New York, haveinvent- \;ferent points in the length of the wire, and

ed certain new and useful Improvements in Wire-Stripping Devices, ofwhich the following is a specification.

My invention relates to that class of devices adapted for stripping theinsulation from insulated wire, such, for example, as

that disclosed in my prior Patent No. 1,151,319, issued to me August 21, 1915, and has more special reference to the stripping ofmultiple-strand wire. In the use of this type of wire or electricalconductor, itfrequently happens thatthe terminals to which the strandsof the wire are adapted to be connected are arranged at different pointsin the length of the wire, whereby it becomes necessary to separatelystrip each strand at thedesired point in the length of the wire formaking proper connection of the same with its terminal. This operation,separately performed for each strand, is more or less troublesome andoccupies considerable time. Because of this, it has been the obj ect ofmy present invention to provide a device or tool adapted for stripping,at one operation, the several strands of a multiplestrand wire at thedesired points in the length of the wire. This object I accomplish tllliby means of the novel construction, arrangement and combination of partsas hereafter set forth iii detail and more particularly pointed out inthe appended claims.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a front elevation of a device embodying one form of myinvention. Fig. 2 is an edge view of the same. Fig. 3 is a Viewcorresponding to Fig. 1, but showing the device engaging a piece ofmultiplestrand wire and in position at the end of a wire strippingoperation. Fig. 4 is a front elevation of a modified form of deviceembodying my invention. Fig. 5 is an edge view of the same. Fig. 6 is aperspective view of a stripping jaw removed from the device shown inFigs. 4 and 5, and Fig. 7 is a view showing a piece of multiple-strandwire having its end stripped of insulation by means of my improveddevice.

Similar reference characters indicate like parts in the several views.

My invention may be embodied in various actuating means for said deviceswhich is operative, first, to cause the clamping dev ce'to clamp thewire and the stripping devices to cut the insulation about the wire, andsecond, to cause a relative movement between the clamping device and thestripping devices 1n a direction lengthwise of the wire to effect astripping of the cut insulation from said wire.

The wire clamping means of this tool comprises two members, 2 and 3,pivoted together at 4, and provided respectively with cooperatlngclamping jaws 5 and 6; these aws projecting laterally forward from theface side of the tool a sufficient distance to permit of the readyinsertion of a wire or wires therebetween and the member 3 havlng alever handle 7 as a means for moving the aw 6 to and from clampingposition relatlve to the jaw 5.

The wire stripping means also comprises two members, 8 and 9,-corresponding to the members 2 and 3 of the clamping device which arepivoted together at 10, and provided respectively with cooperating jaws11 and 12 having a series of stripping devices 13 arranged in a mannerto act upon the strands of the wire at different points in the length ofsaid wire. These stripping devices may be formed and mounted in anydesired manner. In the present case, they are in the form of cuttershaving their cutting edges arranged transversely of the members 11 and12, and are threaded into said members in order to permit of their readyremoval and replacement for the purpose of sharpening or otherwise. Inorder that these cutters may effect a complete severance of theinsulation without cutting the wire core, they are formed withoppositely located notches 1 1 to receive the wire, as shown in Fig. 2.These notches 14: also constitute a means for locating or positioningthe strands between the cutters preliminary to and during the strippingopera-- tion. These described wire clamping means and wire strippingmeans are associated for cooperation by pivotally connecting the members2 and 8 of each, as at 16, with the jaws of each arranged in substantialalinement at one side of the tool, here shown as I the face side.

size.

The tool-thus formed is adapted to'be used or operated in the followingmanner: The strands at the end of the wire to be stripped are firstuntwisted and straightened out to parallel positions, after which theyare placed between the clamping and stripping jaws, this being readilypermitted by reason of the lower jaw members being held in normal openposition under the action of a spring 17 connecting at its opposite endswith extension of the jaw-carrying members 3 and 9. After the wirestrands have been thus located between the several jaws, the leverhandles 7 and 15 are drawn or pressed toward each other, thereby causingthe same to swin on their pivots, 4 and 10 respectively, until the lowerclamping jaw 6 carried by the lever handle 7 is moved sufliciently closeto the jaw 5 to firmly clamp the interposed wire, and the strippingcutters of the jaw 12 carried by the lever handle 15 are movedsufliciently close to the cutters of the jaw 11 to sever the insulationof the strands or wires interposed between them, after which a continueddrawing together of the leverhandles causes both pairs of jaw-carryingmembers to swing about the pivot 16 in a direction away from each otherand thereby effect a stripping of the severed insulation from the wireends, in the manner shown in Figs. 3 and 7.

The two jaw-carrying members, 2 and 8, are preferably held in a normalclosed position adjacent to each other, as shown in Fig. 1, by somesuiable means permitting of their opening and closing movements. As hereshown, this is accomplished by the spring 17.

As a means for more readily locating the wire strands between thestripping cutters and subsequently maintaining the same in such positionduring the cutting and stripping operation, I have provided suitableguides, here shown in the form of a pair of pins 18, 18, locatedadjacent the opposite sides of each cutter on the lower jaw.

For adapting the tool to operate upon different sizes of wire, cuttersof one size may be substituted for those of a different Also, a certainrange of adjustment may be provided by the use of an adjusting screw,such as 19, for varying the cooperating position of the cutters on thelower jaw relative to those on the opposite or upper J The toolillustrated in Figs. 1 t0 3 inclusive, is specially adapted for use instripping loose wires, as it holds the wire against the pulling actioncaused by the stripping of the insulation from the wire. In thoseinstances,.however, where the wire to be stripped is firmly held inconnection with some support, the wire stri ping means only may berequired. There ore, for such use, I have provided a tool, such asillustrated in Figs. 4, 5 and 6, in which the clamping means has beenomitted. The. tool shown in these figures, comprises a pair of levermembers 20 and 21, connected together at'a point between their ends by apivot 22, the upper arms of which members carry stripping devices andthe lower arms of which constitute operating handles.

he stripping devices of this tool substantially correspond inconstruction, arrangement and operation with those of the firstdescribed tool. They comprise cooperating jaws 11 and 12, shown asdotachably connected to the lever members by fastening screws 23, andeach having a plurality of coiiperating stripping cutters 13 andadjacent guides 18', the stripping cutters being arranged lengthwise oftheir supporting members in order to act on the several strands atdifferent points in the length of the wire, and also being arrangeddiagonally of said members in order to permit of the parallelpositioning 'of the strands. In the use of this tool, the strands willbe placed between the jaws of the same in the manner described inconnection with the first described tool, after which the jaws will beforced together to sever the insulation and then drawn lengthwise of thewire to strip the severed insulation therefrom.

While I have used the term multiplestrand wire to denote the type ofwire on which my improved tool is adapted to operate, it will beunderstood that such term is intended to cover a plurality of wires orstrands whether twisted together or otherwise.

What I claim is 1. A device for insulated wire, comprising a pair ofjaws having a plurality of strippers disposed in staggered relationlengthwise of the jaws,

said strippers having cutting edges arranged transversely of the jaws,and means for operating said jaws.

2. A device for stripping multiple-strand insulated wire, comprising apair of jaws having a plurality'of strippers disposed in staggeredrelation' lengthwise of the jaws, said strippers having notched cuttingedges arranged transversely of the jaws, and means for operating saidjaws. I

3. A device for stripping multiple-strand insulated wire, comprising apair of jaws having a plurality of strippers disposed in staggeredrelation lengthwise of the jaws, means for positioning the strandsrelative to the strippers, and means for operating said jaws.

4. A device for stripping multiple-strand insulated wire, comprising apair of jaws having a plurality of strippers disposed in staggeredrelation lengthwise of the jaws, said strippers having cutting edgesarstripping multiple-strand messes at I ranged transversely of the jaws,guides adacent the opposite ends of said strippers for positioning thestrands relative thereto, and

means for operating said jaws.

5. A device for stripping multiple-strand insulated wire, comprising apair of pivoted jaws carrying a plurality of stripping devices arrangeddiagonally of the same for acting on parallel strands at difierentpoints in the length of the wire, and operating handles for said jaws.

6. A device for stripping multiple-strand insulated wire, comprising apair of pivoted jaws carrying a plurality of stripping cutters arrangeddiagonally of the same for acting on parallel strands at difierentpoints in the length of the wire, and also carrying guides forpositioning the strands relative to the cutters, and operating handlesfor said jaws.

7. A device for stripping multiple-strand insulated wire, comprising awire-clamping device, a pair of jaws having a plurality of strippersdisposed in staggered relation lengthwise of the jaws for acting on thestrands at different points in the length of the wire, and means foreffecting relative movement between said clamping device and thestripping devices in a direction lengthwise of the Wire. 7

8. A device for stripping multiple-strand insulated wire, comprising aflair of wireclamping jaws, a pair of jaws aving a plurality ofstrippers disposed in staggered relation lengthwise of the jaws foracting on the strands at different points in the length of the wire, andmeans for effecting relative movement between the clamping jaws and thecutter-carrying jaws in a direction lengthwise of the wire.

9. A device of the character described, comprising two pairs of pivotedmembers,

'with the wire-receiving openings between one member of each pair beingpivotally connected together and the other member being provided with-anoperating handle and each pair being provided with cooperating wireengaging jaws operative through the medium of said handles and arrangedthe same in substantially the same line.

10. A device of the character described, comprising two pairs of pivotedmembers, one member of each pair being pivotally connected together andthe other member being provided with an operating handle and each pairbeing provided with cooperating wire engaging jaws operative through themedium of said handles and arranged with wire receiving openings betweenthe same in substantially the same line, and a spring yieldingly holdingthe two pairs of jaw-carrying members in normal position relative toeach other.

11. A device of the character described, comprising two pairs of pivotedmembers, one pair being provided with wire clamping jaws and the otherwith wire stripping jaws and the two pairs being pivotally connected forpermitting movement of one pair relative to the other, means yieldinglyholding the two pairs of jaw-carrying members in normal positionrelative to each other and also yieldingly holding the two pairs of jawsin normal open position, and operating means for'moving one pair of saidjaw-carrying members relative to the other.

Signed at New York, in the county of New York, and State of New York,this 1st day of December, A. D. 1915.

STUART G. WOOD.

Witnesses:

CHAS. F. DANE, C. J. BUTLER.

